CVE-2026-74767: CWE-434 Unrestricted Upload of File with Dangerous Type in pandora-analysis pandora
Pandora before version 1.12.6 contains a denial-of-service vulnerability due to unbounded decompression of DAA archive files. An attacker can submit a crafted DAA file with highly compressed data that expands to a large size in memory, causing excessive memory and CPU usage. This can make the extraction worker unresponsive or terminate it, impacting Pandora's availability. The vulnerability is tracked as CVE-2026-74767 with a high severity score of 8.7.
AI Analysis
Technical Summary
Pandora's handling of Direct Access Archive (DAA) files includes a denial-of-service vulnerability (CWE-434) where compressed chunks are decompressed without limits on the uncompressed size. This allows an attacker to craft a DAA file that decompresses into a very large amount of data, exhausting memory and CPU resources during extraction of the internal ISO image. The vulnerability affects Pandora versions up to and including 1.12.5. The patch introduces bounded decompression with a maximum extracted file size limit and raises a ZipBomb exception if exceeded, aborting extraction and preventing resource exhaustion.
Potential Impact
Successful exploitation results in denial of service by exhausting memory and CPU resources on the Pandora service, causing extraction workers to become unresponsive or terminate. This impacts the availability of the Pandora service but does not indicate privilege escalation, data disclosure, or integrity compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The described patch approach uses bounded decompression with limits on uncompressed data size and aborts extraction when limits are exceeded. Until an official fix is available, avoid processing untrusted DAA files or implement resource usage monitoring to detect abnormal decompression behavior.
CVE-2026-74767: CWE-434 Unrestricted Upload of File with Dangerous Type in pandora-analysis pandora
Description
Pandora before version 1.12.6 contains a denial-of-service vulnerability due to unbounded decompression of DAA archive files. An attacker can submit a crafted DAA file with highly compressed data that expands to a large size in memory, causing excessive memory and CPU usage. This can make the extraction worker unresponsive or terminate it, impacting Pandora's availability. The vulnerability is tracked as CVE-2026-74767 with a high severity score of 8.7.
CVSS v4.0
Score 8.7high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Pandora's handling of Direct Access Archive (DAA) files includes a denial-of-service vulnerability (CWE-434) where compressed chunks are decompressed without limits on the uncompressed size. This allows an attacker to craft a DAA file that decompresses into a very large amount of data, exhausting memory and CPU resources during extraction of the internal ISO image. The vulnerability affects Pandora versions up to and including 1.12.5. The patch introduces bounded decompression with a maximum extracted file size limit and raises a ZipBomb exception if exceeded, aborting extraction and preventing resource exhaustion.
Potential Impact
Successful exploitation results in denial of service by exhausting memory and CPU resources on the Pandora service, causing extraction workers to become unresponsive or terminate. This impacts the availability of the Pandora service but does not indicate privilege escalation, data disclosure, or integrity compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The described patch approach uses bounded decompression with limits on uncompressed data size and aborts extraction when limits are exceeded. Until an official fix is available, avoid processing untrusted DAA files or implement resource usage monitoring to detect abnormal decompression behavior.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CIRCL
- Date Reserved
- 2026-08-15T21:56:41.828Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a80e422bf8831d539c6ce9f
Added to database: 08/15/2026, 22:11:46 UTC
Last enriched: 08/15/2026, 22:26:04 UTC
Last updated: 08/15/2026, 23:32:56 UTC
Views: 6
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